My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC10AHE3/9AT
- Part No.:
- 1.5SMC10AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10AHE3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,948
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC10AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features 10 V standoff voltage (VWM), 14.5 V clamping voltage (VC) at 103 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 µs waveform - ideal for protecting MOSFETs, ICs, and sensor signal lines against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5SMC10AHE3/9AT datasheet, 1.5SMC10AHE3/9AT pinout, 1.5SMC10AHE3/9AT application, or 1.5SMC10AHE3/9AT equivalent, key selection criteria include its AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.70), 0.073 %/°C VBR temperature coefficient, and RoHS-compliant matte tin-plated leads suitable for automated placement on automotive and industrial PCBs.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient voltages above its 9.5–10.5 V breakdown range (tested at 1 mA). Its glass-passivated junction ensures stable leakage performance (<10 µA at 8.55 V) and fast response time (<1.0 ns), enabling effective suppression of ESD and surge events before downstream components are damaged.
The device's thermal resistance (RθJA = 75 °C/W) and maximum junction temperature of 150 °C support reliable operation under repetitive surge conditions when mounted on standard 8.0 mm × 8.0 mm copper pads. Its 200 A IFSM rating allows handling of high-energy 8.3 ms half-sine surges without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 8.55 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 9.5–10.5 V at 1 mA - Precise avalanche initiation point; ensures predictable turn-on during transients. |
| VC (Clamping) | 14.5 V at 103 A - Peak voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Surge energy absorption capacity per event; enables protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 103 A - Peak surge current handled at rated clamping voltage; validates robustness against high-current transients. |
| TJ max. | 150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Leakage (ID) | <10 µA at 8.55 V - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity indicated by cathode band; unidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail; defines directionality of clamping action. |
| Cathode | Avalanche conduction terminal / Clamping output | Connected to protected line (e.g., signal or power rail); conducts surge current to ground during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - supports under-hood and ADAS applications. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 4th-level surges (4 kV/2 Ω) without failure when properly mounted on 8 mm × 8 mm copper pads. |
| Low clamping ratio (VC/VWM = 1.70) | Minimizes voltage overshoot during clamping - critical for protecting 3.3 V or 5 V logic interfaces and low-voltage sensors. |
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %), low leakage, and long-term parameter stability across temperature and lifetime. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles - eliminates moisture sensitivity concerns during SMT assembly. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs and body control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients up to 1500 W. Use Value: Maintains VC ≤ 14.5 V during 103 A surges - prevents latch-up or damage to 16 V-rated LDOs and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from EMI and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pairs to suppress sub-100 ns transients without distorting signal integrity. Use Value: Sub-10 µA leakage at 8.55 V avoids DC offset errors; fast <1 ns response preserves millivolt-level sensor accuracy. |
| Telecom Equipment Surge Protection | Consumer Electronics Port Protection |
Use Scenario: Safeguarding Ethernet PHY power rails and bias lines in PoE-powered switches against lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on 48 V intermediate bus, coordinated with secondary GDT or MOV stages. Use Value: 1500 W rating handles multi-kV induced surges; AEC-Q101 qualification ensures long-term field reliability in outdoor cabinets. |
Use Scenario: Protecting USB-C VBUS and CC lines in portable devices from hot-plug and ESD events per IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Standoff-limited TVS selected for precise VWM = 8.55 V to avoid interference with 5 V/9 V/15 V PD negotiation. Use Value: Tight VBR tolerance (±5 %) guarantees consistent clamping onset; RoHS + halogen-free compliance meets global eco-regulations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/52T | Same VWM (8.55 V) and VC (14.5 V), but SMB package (DO-214AA); 600 W PPPM, lower IPPM (43 A). | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select when board space is constrained and surge requirements are ≤600 W. |
| 1.5KE10A | Through-hole TO-204AE (DO-41); identical electrical specs but higher RθJA (100 °C/W) and no AEC-Q101 qualification. | Not suitable for automated SMT lines or automotive production; requires wave soldering. | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ10A-E3/52T and 1.5KE10A, the 1.5SMC10AHE3/9AT delivers superior surge robustness (1500 W vs. 600 W or 1500 W with inferior thermal performance), AEC-Q101 validation for automotive use, and SMT-ready packaging - making it the optimal choice for high-reliability, high-volume surface-mount applications demanding full IEC 61000-4-5 compliance.
Availability
1.5SMC10AHE3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, telecom surge protection, and consumer port protection requiring stable component supply and AEC-Q101-qualified reliability.
Supply support for 1.5SMC10AHE3/9AT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability, high-efficiency solutions.
The 1.5SMC Series was developed specifically for surface-mount transient suppression in automotive, industrial, and telecom systems - prioritizing high pulse power density, AEC-Q101 qualification, and compatibility with automated manufacturing.
FAQ
What is the clamping voltage of the 1.5SMC10AHE3/9AT under maximum rated surge current?
The 1.5SMC10AHE3/9AT has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 103 A using the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88303 and reflects worst-case voltage seen by protected circuitry during surge events - critical for ensuring compatibility with 12 V or 15 V system rails.
Is the 1.5SMC10AHE3/9AT qualified for automotive applications?
Yes, the 1.5SMC10AHE3/9AT carries the HE3 suffix, indicating RoHS-compliance and full AEC-Q101 qualification per Vishay's ordering nomenclature. It undergoes rigorous testing for temperature cycling, highly accelerated life testing (HALT), and surge endurance - making it approved for use in engine control units, ADAS sensors, and other under-hood automotive electronics.
What is the standoff voltage (VWM) specification for the 1.5SMC10AHE3/9AT?
The 1.5SMC10AHE3/9AT has a maximum reverse standoff voltage (VWM) of 8.55 V, meaning it remains non-conductive up to this DC or RMS voltage level. This value provides a safe margin below the 9.5–10.5 V breakdown range and ensures minimal leakage (<10 µA) in normal operation - essential for preserving signal integrity in low-power sensor interfaces.
Does the 1.5SMC10AHE3/9AT have a defined polarity marking, and how is it identified?
Yes, the 1.5SMC10AHE3/9AT is unidirectional and features a visible cathode band on the SMC (DO-214AB) package body. Per Vishay mechanical drawings, this band identifies the cathode terminal - which must be connected to the line being protected - while the anode connects to ground or the return path. No marking appears on bidirectional variants, but the HE3/9AT suffix confirms unidirectional construction.
What is the thermal resistance and maximum junction temperature rating of the 1.5SMC10AHE3/9AT?
The 1.5SMC10AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads, and a maximum junction temperature (TJ) rating of +150 °C. These values enable reliable operation in high-temperature environments such as automotive engine compartments or industrial control cabinets without derating under standard airflow conditions.
1.5SMC10AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC10AHE3/9AT FAQ
1.How can I place an order for 1.5SMC10AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10AHE3/9AT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1.5SMC10AHE3/9AT reliable?
The price and inventory of 1.5SMC10AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC10AHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC10AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10AHE3/9AT?
1.5SMC10AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10AHE3/9AT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1.5SMC10AHE3/9AT?
For technical support, including 1.5SMC10AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10AHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC10AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10AHE3/9AT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1.5SMC10AHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC10AHE3/9AT?
All 1.5SMC10AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10AHE3/9AT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1.5SMC10AHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC10AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC10AHE3/9AT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
